A 3-phase 3-wire supply feeds a load consisting of three equal resistors connected in star. If one of the resistors is open circuited, then the percentage reduction in the load will be?
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- Question-3 a. Determine the Q point of the transistor circuit shown in Figure below. b. Also draw the d.c. load line. + Vcc Ic + 10V 1k2 RB B = 100 47 k2 VBE RE 4.7 k2 - VEE 6- 10V. If the load current through a SCR (Thyristor) reduces to almost zero, what will be the result?Introduction: For ohmmeter testing purpose, an NPN transistor is similar to two diodes back to back, as shown in figure 12b. there exists two PN junctions, base-emitter and base collector. When each of these junctions is forward biased, the positive lead of the ohmmeter must be connected to P material, and the negative lead to the negative N material (Figure 12c). there should be low resistance reading when these junctions are reverse biased, positive lead to N material and negative lead to P material (figure 12d). The PNP transistor can be tested with a similar method, except that the diodes are face to face as shown in figure 12e. this simple test determines if the transistor is shorted or open on a go (no problems)/no go (it has problems) basis.
- Explain the concept of power semiconductor devices such as Insulated Gate Bipolar Transistors (IGBTs) and Thyristors. How do these devices enable efficient power control and switching in high-power applications?In what ways are integrated circuits distinct from transistors?How do bipolar junction transistors (forward active) apply to engineering? List two examples.
- Explain the two types of MOSFETs (draw the physical structure as well). Also explain themajor difference between them regarding mode of operation?Question 8 Calculate the expression of the peak-to-peak voltage ripple of the step-up converter in the case of the discontinuous conduction mode using the circuit parameters.What is Bipolar Junction Transistor and its History?
- 1. The following questions refer to the circuit shown below. a) What do the areas of the circuit labeled "., ", and" do? b) Explain the operation of the circuit, beginning on the left (please be specific, do not include the motor or the AC source) c) How would you wire this circuit to a load and a 120VRMS source (note: "N" is Neutral or GND) To Load IL "A" 56R 240R 33RI V1 5v 立三立 120Vrms 160HZ 0° 33nFi ONHow would you reduce Req of a circuit by adding a resistor – numerical piece to follow.How do we know current flows in source terminal? Is this common for n-type mosfet? What is an n-type mosfet?